CN102927572B

CN102927572B - Garbage burning equipment with forward-pushing three-section type cooling high-pressure loss fire grate and method for burning garbage by using garbage burning equipment

Info

Publication number: CN102927572B
Application number: CN201210473698.XA
Authority: CN
Inventors: 龙吉生; 朱晓平; 印晓彬; 石剑菁; 瞿兆舟; 张利军; 於志华; 严梦帆; 郭泓驿
Original assignee: Shanghai SUS Environment Co Ltd
Current assignee: Shanghai SUS Environment Co Ltd
Priority date: 2012-11-21
Filing date: 2012-11-21
Publication date: 2015-03-04
Anticipated expiration: 2032-11-21
Also published as: CN102927572A

Abstract

The invention relates to garbage burning equipment and particularly relates to a three-section type fire grate and a burning furnace with the same, i.e., garbage burning equipment with a forward-pushing three-section type cooling high-pressure loss fire grate and a method for burning garbage by using the garbage burning equipment. The garbage burning equipment comprises a drying section, a burning section and a burnout section; the forward-pushing fire grate comprises a sliding fire grate, a fixed fire grate and charging fire grates; the fire grate is composed of the sliding fire grate driven by a sliding fire grate beam, the fixed fire grate sliding on a supporting frame and fixed on the fixed fire grate beam and the charging fire grates arranged at tail ends of all the sections of fire grates; height differences exist among all the fire grate sections and among all regions; and the burnout fire grate is installed horizontally. With the adoption of the equipment, 5-6 months are taken as one repair cycle; in addition, the operating and maintaining costs are also reduced by about 80% than the initial cost, and the property is improved by 20% under the same cost.

Description

A kind ofly adopt the garbage incinerating system that forwards syllogic cools high crushing fire grate and the method for burning away the refuse thereof

Technical field

The present invention relates to a kind of garbage incinerating system, especially syllogic fire grate and incinerator thereof.

Background technology

Enter 21 century, Environmental Protection in China and heat supply undertaking have had the development of advancing by leaps and bounds, and single seat incinerator reaches 750 ~ 1000 square meters, require increasing to incinerator single-machine capacity.The layer combustion refuse incinerator of China's grate firing Large Copacity heat supply in nearly 10 years almost all adopts crossbeam row dynamic formula fire grate.The advantage of this fire grate be stable, maintenance rate is low.Because the serviceability temperature of existing fire grate block self is unsuitable too high, for better cooling device, so equipment becomes column to move, because can gap be produced so between the column and the column, then the mode by ventilating effectively can cool fire grate, shortcoming is that leakage slag rate is relatively undesirable, operation power consumption is high, the dust concentration produced after burning is large, particle diameter is little, and existing three sections of fire grate maintenance periods are also 4 months, time is longer, and operation expense also always can not reach the target in ideal, another shortcoming is rubbish not rolling on fire grate, (one side ignites) is ignited from above by high temperature in burner hearth, therefore to the calorific value of rubbish, fugitive constituent, coking capacities etc. all have higher requirement, when rubbish value off-design value, incinerator is exerted oneself, operational efficiency declines to a great extent.

Summary of the invention

The object of the invention is to overcome above-mentioned the deficiencies in the prior art, propose a kind ofly to adopt the garbage incinerating system that forwards syllogic cools high crushing fire grate and the method for burning away the refuse thereof.

Concrete technical scheme of the present invention is: a kind of garbage incinerating system adopting forwards syllogic to cool high crushing fire grate, and comprise dryer section, burning zone and burning segment, described forwards fire grate comprises slip fire grate, fixed grate, blanking fire grate; The slip fire grate that fire grate is driven by the fire grate beam that slides slides on bracing frame and the blanking fire grate of the fixed grate that is fixed on stationary furnace stringer and each section of fire grate tail end is formed; Each fire grate section, arranges drop between region, and refuse breaking of being more convenient for is loose; Burn-out grate is horizontally disposed with, and is convenient to reduce hot igloss amount; Combustion grate plate arranges thermocouple, measures stoker surface temperature, reduce radiant heat impact by increase and decrease rubbish thickness and add the means such as Wind Volume, improving fire grate cooling effect, increase the service life; There is fin at the fire grate back side, and by blower fan air feed, combustion-supporting and cooling, increases the service life.

The method and apparatus of described employing forwards syllogic fire grate for burning house refuse makes waste incineration be easy to control, and horizontally disposed burn-out grate, makes burning more abundant.

Because fire grate is movable, fixing alternately layout, all rubbish all can produce rolling on fire grate, the effect of poking fire of fire grate is average, so incineration firing is more even, combustion position is more easily regulated, control, operation power consumption is little, and air quantity and blast also control even more ideal, the dust concentration produced after burning is few, particle diameter is large, leak slag rate very low, more benefit and adapt to complicated component of refuse, take into full account the refrigerating function to equipment self in the design, therefore longer service life, add maintenance period simultaneously, can reach 5 ~ 6 months is a time between overhauls(TBO), and operation expense is also reduced to original about 80%, namely under identical cost, performance boost 20%.

The method of the garbage incinerating system burning domestic garbage of the high crushing of above-mentioned employing forwards three sections cooling, step is as follows:

Rubbish enters the high crushing type garbage incinerator of forwards three sections cooling from hopper, be pushed on the siege of dry fire grate by pusher, according to msw water content and rubbish character, adjust movement rate and the displacement stroke of slip fire grate respectively, make rubbish fully dry on dry fire grate, broken as far as possible loose, finally by blanking fire grate, landing is to combustion grate; The same movement rate by adjustment slip fire grate and displacement stroke, make rubbish Thorough combustion, then by blanking fire grate, tumble to burn-out grate, burn-out grate is horizontally disposed with, and is conducive to rubbish and burns completely, the slag burnt enters mucking machine, then is discharged out of the furnace by mucking machine.

Accompanying drawing explanation

1) Fig. 1 adopts forwards three sections to cool the general structure sectional view of the incinerator of the garbage incinerating system of high crushing.

2) each section of schematic diagram of fire grate described in Fig. 2.

3) the slip fire grate drives structure schematic diagram of fire grate described in Fig. 3.

4) structural representation of the thermocouple of fire grate described in Fig. 4.

Detailed description of the invention

As shown in Fig. 1-4, a kind of garbage incinerating system adopting forwards three sections to cool high crushing fire grate, arranges slip fire grate 101, fixed grate 102 and blanking fire grate 103 in type garbage incinerator 03; Described fire grate 03 forms dryer section fire grate 201, burning zone fire grate 202 and burnt segment grate 203 respectively according to " fixed grate, slip fire grate, fixed grate, slip fire grate ... the overlap mode of last blanking fire grate ".From high to low, setting is joined end to end to form siege.Dry fire grate 201, combustion grate 202 are that 20 ° of angles are arranged with horizontal plane; Burn-out grate 203, in being horizontally disposed with, can reduce the clinker ignition loss of slag; Fire grate block of material adopts cast steel with high chromium; Dryer section fire grate 201 in fire grate system, burning zone fire grate 202 and burnt segment grate 203, respectively driven by independently driving mechanism, the air compartment 05 below it is all independently; Fire grate adopts hydraulic jack to drive; Adopt crosswise movement formula fire grate, the action of fire grate has good agitaion, thus realizes the loose of rubbish and stir; Adopt the fire grate block of high air resistance, can guarantee that combustion air is evenly supplied, and not by rubbish thickness variable effect; The self-cleaning function of fire grate is strong, can guarantee the supply of combustion air; Do not arrange gap between fire grate, the leakage slag come from fire grate is little; In order to the loose of rubbish and stirring, be provided with 2 drop sections.

During work, rubbish enters the high crushing type garbage incinerator of forwards three sections cooling from hopper 01, be pushed on the siege of dry fire grate 201 by pusher 02, according to msw water content and rubbish character, adjust movement rate and the displacement stroke of slip fire grate respectively, make rubbish fully dry, broken as far as possible loose on dry fire grate, last by blanking fire grate, landing is to combustion grate 202; The same movement rate by adjustment slip fire grate and displacement stroke, make rubbish Thorough combustion, then by blanking fire grate, tumble to burn-out grate 203, burn-out grate is horizontally disposed with, and is conducive to rubbish and burns completely, the slag burnt enters mucking machine 04, then is discharged out of the furnace by mucking machine 04.

The method and apparatus of above-mentioned employing forwards syllogic fire grate for burning house refuse makes waste incineration be easy to control, and horizontally disposed burn-out grate, makes burning more abundant.And because of fire grate be movable, fixing alternately layout, all rubbish all can produce rolling on fire grate, the effect of poking fire of fire grate is average, so incineration firing is more even, combustion position is more easily regulated, control, operation power consumption is little, and air quantity and blast also control even more ideal, the dust concentration produced after burning is few, particle diameter is large, leak slag rate very low, more benefit and adapt to complicated component of refuse, take into full account the refrigerating function to equipment self in the design, therefore longer service life, add maintenance period simultaneously, can reach 5 ~ 6 months is a time between overhauls(TBO), and operation expense is also reduced to original about 80%, namely under identical cost, performance boost 20%.

Claims

1. adopt forwards syllogic to cool a garbage incinerating system for high crushing fire grate, adopt crosswise movement formula fire grate, comprise dryer section, burning zone and burning segment; Described forwards fire grate comprises slip fire grate, fixed grate, blanking fire grate; The slip fire grate that fire grate is driven by the fire grate beam that slides slides on bracing frame and the blanking fire grate of the fixed grate that is fixed on stationary furnace stringer and each section of fire grate tail end is formed; Described fire grate is according to fixed grate, slip fire grate, fixed grate, slip fire grate, and the overlap mode of last blanking fire grate forms dryer section fire grate, burning zone fire grate and burnt segment grate respectively; From high to low, setting is joined end to end to form siege; Dryer section fire grate in fire grate system, burning zone fire grate and burnt segment grate, respectively driven by independently driving mechanism, and the air compartment of below is all independently separately; It is characterized in that,

Between each fire grate, gap is not set; Each fire grate section, arranges drop between region; Burn-out grate is horizontally disposed with; Dry fire grate, combustion grate and horizontal plane are that 20 ° of angles are arranged;

Combustion grate plate is arranged and measures stoker surface temperature thermo-coupler, the fire grate back side is provided with fin that is combustion-supporting by blower fan air feed and that cool, increase the service life.

2. a kind of garbage incinerating system adopting forwards three sections to cool high crushing fire grate according to claim 1, is characterized in that, described driving mechanism is that hydraulic jack drives.

3. a kind of garbage incinerating system adopting forwards three sections to cool high crushing fire grate according to claim 1, it is characterized in that, fire grate block of material adopts cast steel with high chromium.

4. adopt a method for the burning domestic garbage of the garbage incinerating system of the high crushing of forwards three sections cooling as claimed in claim 1, step is as follows:

Rubbish enters the high crushing type garbage incinerator of forwards three sections cooling from hopper, be pushed on the siege of dry fire grate by pusher, according to msw water content and rubbish character, adjust movement rate and the displacement stroke of slip fire grate respectively, make rubbish fully dry on dry fire grate, broken as far as possible loose, finally by blanking fire grate, landing is to combustion grate; The same movement rate by adjustment slip fire grate and displacement stroke, make rubbish Thorough combustion, then by blanking fire grate, tumble to burn-out grate, the slag burnt enters mucking machine, then is discharged out of the furnace by mucking machine.